topic Re: Pixma G7020 scan communication error while using IJ Scan Utility in Printer Software & Networking

Pixma G7020 scan communication error while using IJ Scan Utility

rbwilliams76 — Wed, 14 Feb 2024 02:34:53 GMT

I have a Pixma G7020 printer/scanner. I downloaded the MP drivers from the Canon website. My computer and printer are connected to the same wi-fi router. The printer prints fine from my computer running Windows 11. Use the IJ Scan Utility app to try to scan. When I select the auto button in the scan app the printer scanner starts scanning. However after the scanning stops I receive an error message--"cannot communicate with scanner." Listed error codes are "2, 157, 50."

I uninstalled and then reinstalled the MP drivers/IJ Scan Utility from Canon; I checked my Bitdefender antivirus and confirmed that IJ Scan Utility had permission to communicate with the computer; the computer is obviously communicating with the scanner because the scanner runs after starting it in the app; and I confirmed that the correct printer/scanner, "Canon G7000 series Network", is the selected scanner. Ultimately I don't get a scan of my document to save to my computer. After wrestling with this for over 5 hours I am at a loss as to why the scanner is not operating correctly.

Re: Pixma G7020 scan communication error while using IJ Scan Utility

jimktm — Wed, 06 Aug 2025 03:56:12 GMT

Did you ever solve this? I have exact same symptoms with my G7020 in Windows 11. If I reboot Windows, then sometimes I can scan a page or two, but then it gets the connection error and I'm back to square one. I have uninstalled/reinstalled all the Cannon software, printer has latest firmware, Windows has all latest MS updates.

Printing works fine, so it's not a WiFi connection problem.

Re: Pixma G7020 scan communication error while using IJ Scan Utility

rbwilliams76 — Wed, 06 Aug 2025 23:19:54 GMT

I did. I too was having difficulty with the fact that my WiFi signal was strong enough to allow me to print but did not support the scanning function. After further research, I noticed that one of the problem areas that was identified was the existence of a weak WiFi signal. I upgraded to fiber internet and placed the router in the same room as my computer and printer. Once I did that and again used the IJ Scan Utility the printer scanned my documents without issue and I was able to save them. Bottom line is for you to try and improve the strength of your WiFi signal to your computer and printer.

Re: Pixma G7020 scan communication error while using IJ Scan Utility

jimktm — Fri, 08 Aug 2025 22:43:38 GMT

My printer is only 4 feet from my WiFi router, and the computer is hardwired to the router, so I think I must have a different issue.